In Unit 5: Evolution we will discuss the theories behind the adaptations and differences among organisms. We will also discuss how these vast and varied organisms are classified and arranged based on different types of scientific evidences. We will use Big Ideas: Evolution and Unity and Diversity of LIfe. For a better explanation of these Big Ideas and all of the others that play a role in this course check out this link to the Pennsylvania Depart ment of Educations SAS portal.Choose Biology in the course drop down box at the bottom of the page and you will be introduced to all of the Big Ideas for Biology.